IPS Controllers M720 - Page 18

17
M720 pH/ORP Controller Owner’s Manual
iii. Use Up/Down buon to increase/decrease Over
Timer
iv. When nished, press Mode buon to connue
4. The Over Timer is interlocked with the Dose Time
selecon.
i. If the Dose Time is set to a med cycle, the Over
Timer will count med feed cycles. Every me the
set level is reached the mer will reset its count. If
the preset cycle is reached, the pH digital display will
ash, and the pH output relay will de-energize. The
controller must be reset manually by cycling out of
and back into Auto mode using the mode buon.
(Default: 60 cycles)
ii. If the Dose Time is set to a connuous feed mode,
the Over Timer will count in minutes. (Default: 60
minutes)
5. When the Dose Time is changed from either med or
connuous feed, the Over Timer is reset to Default.
e. High Alert - Default: 8.0 pH
1. Default: 8.0 pH
2. Selectable range: OFF, 7.5 pH to 8.4 pH (acid feed). A
high alert will occur if the pH level remains above the
High Alert level for 10 connuous minutes, and will
automacally turn o the High Alert when the pH level
falls below the high alert level for 1 connuous minute.
During High Alert, the pH dose output will be disabled.
3. Changing High Alert seng
i. Press Mode buon to enter pH standby
ii. Press and hold Mode buon and then press Set Level
buon (red pH alert LED will come on) release both
buons. You are now in Set Alerts mode.
iii. Press Set Level buon again to display current High
Alert